package com.yvon.service.demo.spring.bean;

import java.util.HashMap;
import java.util.Map;

public class UserDao {

    private static Map<String, String> hashMap = new HashMap<>();

    static {
        hashMap.put("10001", "小傅哥");
        hashMap.put("10002", "八杯水");
        hashMap.put("10003", "大傻逼");
    }

    public String queryUsername(String uid) {
        return hashMap.get(uid);
    }
}
